Number Group L.L.C. is seeking a Mid to Senior Front-End Developer to join our dynamic team. This role will involve working across multiple portfolio companies within the emerging technologies and blockchain space. The ideal candidate will have a deep understanding of modern web development practices, including extensive experience with JavaScript frameworks, progressive web applications, and responsive design. As part of our innovative team, you will play a crucial role in developing and enhancing user interfaces that are not only visually appealing but also highly functional and user-friendly. Your work will directly impact our mission to provide equal access to decentralized finance through cutting-edge digital solutions. Willing to start on a part-time / full-time contract basis and move into full-time salaried position.  Key Responsibilities Develop and maintain web applications using HTML, CSS, JS + React Working with the UX/UI design team to ensure accurate experience for the final product Implement responsive designs for desktop and mobile platforms, ensuring a seamless user experience Use best practices for optimizing performance, SEO, and accessibility Deploy applications and manage DNS and cloud services for multiple domains Integrate Web3 technologies, such as wallet connection and contract interaction, to build secure identity and payment features and services Contribute to a collaborative team environment, moving fluidly between multiple active projects and interfacing with clients and external partners in a professional manner Basic Requirements Proficiency in HTML, CSS, JavaScript, and React Familiarity with collaborative design apps (e.g. Figma) and experience converting wireframes to responsive React components for both mobile and desktop Experience with React frameworks, such as NextJS and Vite, as well as state management techniques and libraries (e.g. React Context, Zustand/Redux/Jotai/etc.) Familiarity with Web3 wallet management and interfacing with smart contracts (wagmi + viem + connectkit preferred) Understanding of Git workflows for navigating pull requests, code reviews, and deployment checks/actions Clear communication, both written (e.g. Slack, Telegram, pull requests, documentation, etc.) and verbal (e.g. video conferencing) Preferred Qualifications Experience in the crypto/DeFi space is a significant plus Experience with styled-components Experience with unit/integration testing best practices and libraries (e.g. Jest, Vitest) Experience with creating Progressive Web Apps Experience with WebXR technologies (e.g. WebGL, ThreeJS and the @react-three suite) Familiarity with authentication integrations/services (e.g. Google Identity, OAuth, etc.) Familiarity with deployment and DNS management platforms like Vercel, Cloudflare, Godaddy, etc. Familiarity with cloud computing infrastructure (e.g. AWS, GCP, Digital Ocean, etc.) Skills in asset creation and editing tools (e.g. Photoshop, Illustrator, Inkscape, etc.) Interest in game design and mechanics When applying, mention the word CANDYSHOP to show you read the job post completely.